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  • Yeast: The Practical Guide to Beer Fermentation
    Yeast: The Practical Guide to Beer Fermentation

    Yeast: The Practical Guide to Beer Fermentation

    Price: 14.24 € | Shipping*: 0.00 €
  • Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black
    Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black

    Description: Solar oxygen pump with built in a 1800mAh lithium battery for storing energy, thus the oxygen pump working in the night as well. Just put the solar panel in a sunny spot and it starts automatically. Suitable for a small to medium sized pond, outdoor fish tank or water reservoir, etc. Features: [Environment-friendly Solar Energy]The use of solar energy makes it environment-friendly, portable and easy to install with no need for wiring, no operating cost and maintenance free, and solar power is much safer for your kid. [Large Air Volume]Stable silent oxygen pump with less than 60 dB low noise and 1.4L/min air volume, suitable for 40-250L container. [Battery Backup]Built in a 3.7V 1800mAh 18650 lithium battery pack for storing energy, thus the oxygen pump working in the night as well. [Evenly Air Distribution]There are 3 working modes can meet your different demands, and two air flow outlets make the air distribution more even and pervasive. [Adjustable Angle]The solar panel angle can be adjusted to receive the sunlight most sufficiently. Perfect for bird bath, small pond, garden decoration, water circulation for oxygen, etc. Product Working mode: Pattern 1: high speed (green light normally on) working hours: 24 hours,flow: 1.3 L/min Pattern 2: low (blue light normally on) working hours: 48 hours,flow: 0.7 L/min Pattern 3: Low gear Open 10 seconds stop for 10 seconds (green and blue double color light normally on) working hours: 72 hours Specifications: Material: ABS Solar panel:5W Polycrystalline solar panel included Battery:7.4V 2400mAH Product working voltage range:5.5V-8.4V Discharge protection voltage:5.5V Over charge protection voltage:8.4V Solar charge time: 8 hours Max. working current: 150MA (high grade); 100MA (low gear) Quiescent current: less than 10UA Noise: 60dB Min. Air Flow: 1.4L/min Working Time: Approx. 24 hours Oxygen Hose Length: 250cm / 100in Air stone deepth: 100cm/39.37in Wire length: 3M / 118in Solar panel size: 27*18*2cm/10.62*7.08*0.78inch Pump Size: Approx. 9.5*5.5*5cm/3.74*2.16*1.96inch Package Size: Approx. 30.2*18.5*7.2cm / 11.88*7.28*2.83inch Package Weight: Approx. 1.33KG / 2.93lb Package List: 1 * Solar Oxygen Pump 1 * Package of Accessory 2 * Air Stone 1 * 2.5M Aquarium Oxygen Pipe 1 * Manual (English) Note: This product is an electronic product. The oxygen-increasing device cannot be placed in water, and the diversion hole cannot be blocked.

    Price: 48.59 £ | Shipping*: 0.0 £
  • Solar Fish Tank Oxygen Pump Oxygenator Aquarium Oxygen Aerator Pond Aerator Air Pump Fishing
    Solar Fish Tank Oxygen Pump Oxygenator Aquarium Oxygen Aerator Pond Aerator Air Pump Fishing

    Features: Solar powered oxygen pump, no battery and plug required, economical and environment friendly. Comes with 2 soft hose, 2 air stones and a connector. Built in a 3.7V 1800mAh 18650 lithium battery for storing energy, thus the oxygen pump working in the night as well. Easy to double air flow with the included Y connector. 50dB low noise oxygen pump. Suitable for outdoor fish tank, fishpond or fishing. Specifications: Material: ABS Solar Voltage: 6V Solar Current: 450mA Rated Voltage: 3.5V Max. Current: 450mA Noise: 50dB Min. Air Flow: 1L/min Working Time: Approx. 22 hours Oxygen Hose Length: 100cm / 39.37in Item Size: Approx. 19.1 * 17 * 2.7cm / 7.52 * 6.69 * 1.06in Item Weight: Approx. 533g / 18.82oz Package Weight: Approx. 656g / 23.16oz Package Size: Approx. 21 * 17.5 * 7cm / 8.27 * 6.89 * 2.76in Package List: 1 * Oxygen Pump 1 * Package of Accessory 2 * Air Stone 2 * Aquarium Oxygen Pipe 1 * Manual (English)

    Price: 50.09 € | Shipping*: 0.0 €
  • 10Pc Wine Brewing One-way Exhaust Valve Wine Beer Brewing Fermentation Check Valve Plastic Water Seal Home Brewing Exhaust Valve
    10Pc Wine Brewing One-way Exhaust Valve Wine Beer Brewing Fermentation Check Valve Plastic Water Seal Home Brewing Exhaust Valve

    It's a great honor for you to visit my store. Good luck with your favorite purchases Brand Name : JJTHNCR Origin : Mainland China keyword : beer brewing keyword 1 : kombucha keyword 2 : rubber hole plug keyword 3 : fermentation keyword 4 : fermenter keyword 5 : fermentation lids keyword 6 : brewing equipment keyword 7 : wine making equipment keyword 8 : conical fermenter keyword 9 : fermentation chamber Function : Plastic Air Lock Water Seal Household Brewing Exhaust Valve Function1 : One-way wine beer brewing fermentation check valve Function2 : one way exhaust valve The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom'sd policies and EU Product Safety and Compliance laws.

    Price: 110.34 € | Shipping*: 0.0 €
  • What is the reaction equation for mashing in beer brewing?

    The reaction equation for mashing in beer brewing involves the conversion of starches in the malted barley into fermentable sugars. This process is facilitated by enzymes present in the malt, such as amylase, which break down the starches into simpler sugars like maltose. The general equation for mashing can be represented as: Starches + Water + Enzymes → Sugars. This sugar-rich liquid, known as wort, is then boiled and fermented with yeast to produce beer.

  • How does fermentation work without yeast?

    Fermentation can occur without yeast through the process of lactic acid fermentation. In this process, bacteria such as Lactobacillus convert sugars into lactic acid, which results in the sour taste of fermented foods like yogurt, sauerkraut, and kimchi. This type of fermentation is commonly used in the production of dairy products and pickled vegetables. While yeast is not involved in lactic acid fermentation, the process still allows for the preservation and transformation of food through the breakdown of sugars into acids.

  • Why does fermentation in beer brewing stall despite proper dehydration?

    Fermentation in beer brewing can stall despite proper dehydration due to a variety of factors. One common reason is the presence of high levels of alcohol, which can inhibit the activity of yeast and slow down the fermentation process. Additionally, the temperature of the fermentation environment can impact the yeast's ability to function properly, leading to a stall in the fermentation process. Finally, the quality and health of the yeast used in the brewing process can also play a role in fermentation stalling, as stressed or unhealthy yeast may struggle to complete the fermentation process.

  • What does yeast do in alcoholic fermentation?

    Yeast plays a crucial role in alcoholic fermentation by converting sugars into alcohol and carbon dioxide. This process is known as fermentation, where yeast breaks down the sugars present in the liquid to produce ethanol (alcohol) and carbon dioxide as byproducts. The alcohol produced is what gives alcoholic beverages their intoxicating properties, while the carbon dioxide creates bubbles in beverages like beer and champagne. Yeast also helps to develop the flavors and aromas in the final product through its metabolic activities during fermentation.

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  • Anself 5V Solar Power Charging Oxygenator Air Pump Fishing Oxygen Pump Aerator with Air Stones
    Anself 5V Solar Power Charging Oxygenator Air Pump Fishing Oxygen Pump Aerator with Air Stones

    This product is an oxygenator powered by a solar panel and also can be charged by a power adapter with the USB charging cable. It does not require any wire connection, ensuring a quick and easy installation. It helps to increase oxygen levels to fishes when fishing or in fish tanks, aquariums. Features: AC/DC oxygen pump, adopt pure copper movement and advanced single-chip intelligent control. Built-in 3.7V 2200mAh lithium battery, charging via USB interface. Constant voltage/current charging, over charge and over discharge protection, low battery alarm. Folding design to combine solar panel and pump in one, portable and low noise for use. No wiring needed, ensuring a quick and easy installation. Widely used for a variety of ornamental fish, aquarium, company aquarium, etc. Especially great for power outage emergency, as well as oxygen pump for wild fishing, small amounts of aquatic transport. Specifications: Solar Panel: 5V / 1.4W Charging Input: DC 5V / 1A Battery: 18650 Li-ion 3.7V 2200mAh Air Pump: 3V / 0.5W Min. Air Flow: 0.3L/min External Air Stone Dia.: 5.1mm Air Pipe Outlet Dia.: 4.4mm Air Pipe Length: Approx. Long: 100cm(1pc); Short: 30cm USB Cable Length: Approx. 100cm Working Power Range: 3.2V-4.2V 90mA Low Power Indication Voltage(flash in green): 3.3V Full Power Indication Voltage(red): 4.0V Over Charge Protection Voltage: 4.2V Working Time: Approx. 20 Hours with fully charged battery Product Size: 120 * 78 * 40mm / 4.72 * 3.1 * 1.57in Product Weight: 324g / 11.43oz Package Size: 13 * 10 * 8.5cm / 5.12 * 3.94 * 3.35in Package Weight: 456g / 16.08oz Package List: 1 * Oxygen Pump 3 * Air Pipe(2 long and 1 short) 2 * Air Stone 1 * USB Charging Cable 1 * User Manual (English)

    Price: 38.99 € | Shipping*: 0.0 €
  • Solar Power Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator Air Pump Fishing white
    Solar Power Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator Air Pump Fishing white

    Description: Solar oxygen pump with built in a 3600mAh lithium battery for storing energy, thus the oxygen pump working in the night as well. Just put the solar panel in a sunny spot and it starts automatically. Suitable for a small to medium sized pond, outdoor fish tank or? water reservoir, etc. Features: [Solar Energy]The use of solar energy makes it environment-friendly, portable and easy to install with no need for wiring, no operating cost and maintenance free, and solar power is much safer for your kid. [Battery Backup]Built in a 3.7V 3600mAh 18650 lithium battery pack for storing energy, thus the oxygen pump working in the night as well. [low Noise]Stable silent oxygen pump with less than 60 dB low noise and 0.5-0.9L/min air volume, suitable for many types of containers. [Evenly Air Distribution]There are 3 working modes can meet your different demands, and two air flow outlets make the air distribution more even and pervasive. [Adjustable Angle]The solar panel angle can be adjusted to receive the sunlight most sufficiently. Perfect for bird bath, small pond, garden decoration, water circulation for oxygen, etc. Product working mode and working time on fully charged battery : 1-Position 1: high speed (24H) ? 2-Position 2: low speed (48H) 3-Position 3: air pump 10 seconds and off 10 seconds circularly (96H) 4-OFF Indicator color: When charging: if the battery power is less than 50%, the indicator is breathing red; if the battery power is more than 50%, the indicator is breathing blue; if the battery is fully charged, the indicator is constant blue. When air pumping: if the battery power is less than 50%, the indicator is red; if the battery power is more than 50%, the indicator is blue. Specifications: Material: ABS?? ?? ? Solar panel:0.9W, 5V PET Polycrystalline Silicon Battery:2*18650 3.7V 1800mAH Lithium Battery Product voltage:3V DC? ? Sound: less than 60dB Air flow:0.5L/min-0.9L/min Product working voltage range:3.0V-4.25V Charging time: by solar panel under sunlight 25H;by 5V 1A charger 5H ? Oxygen Hose Length: 280cm / 110.23inch Cable Length: 95cm / 37.4inch Item Size: Approx. 25*7.5*4.2cm / 9.84*2.95*1.65inch Package Size: Approx. 15.5*13.5*5.5cm / 6.1*5.31*2.16inch Package Weight: Approx. 483g / 1.06lb Package List: 1 * Solar Oxygen Pump?? ?? ? 1 * Package of Accessory?? ?? ? 2 * Air Stone?? ?? ? 1 * Aquarium Oxygen Pipe?? ?? ? 1 * Manual (English)?? ? Note: 1. This product is an electronic product. The oxygen-increasing device cannot be placed in water, and the diversion hole cannot be blocked. 2. As the charging effect of the solar panel is depended on the sunlight, the LED light time is affected by weather, seasons, places, etc. 3. Install the product in an environment with sufficient sunlight to keep the transparent cover fully exposed to sunlight. 4. Regularly clean the dirt on the transparent cover to improve charging efficiency.

    Price: 40.0 € | Shipping*: 0.0 €
  • Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black
    Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black

    Description: Solar oxygen pump with built in a 1800mAh lithium battery for storing energy, thus the oxygen pump working in the night as well. Just put the solar panel in a sunny spot and it starts automatically. Suitable for a small to medium sized pond, outdoor fish tank or water reservoir, etc. Features: [Environment-friendly Solar Energy]The use of solar energy makes it environment-friendly, portable and easy to install with no need for wiring, no operating cost and maintenance free, and solar power is much safer for your kid. [Large Air Volume]Stable silent oxygen pump with less than 60 dB low noise and 1.4L/min air volume, suitable for 40-250L container. [Battery Backup]Built in a 3.7V 1800mAh 18650 lithium battery pack for storing energy, thus the oxygen pump working in the night as well. [Evenly Air Distribution]There are 3 working modes can meet your different demands, and two air flow outlets make the air distribution more even and pervasive. [Adjustable Angle]The solar panel angle can be adjusted to receive the sunlight most sufficiently. Perfect for bird bath, small pond, garden decoration, water circulation for oxygen, etc. Product Working mode: Pattern 1: high speed (green light normally on) working hours: 24 hours,flow: 1.3 L/min Pattern 2: low (blue light normally on) working hours: 48 hours,flow: 0.7 L/min Pattern 3: Low gear Open 10 seconds stop for 10 seconds (green and blue double color light normally on) working hours: 72 hours Specifications: Material: ABS Solar panel:5W Polycrystalline solar panel included Battery:7.4V 2400mAH Product working voltage range:5.5V-8.4V Discharge protection voltage:5.5V Over charge protection voltage:8.4V Solar charge time: 8 hours Max. working current: 150MA (high grade); 100MA (low gear) Quiescent current: less than 10UA Noise: 60dB Min. Air Flow: 1.4L/min Working Time: Approx. 24 hours Oxygen Hose Length: 250cm / 100in Air stone deepth: 100cm/39.37in Wire length: 3M / 118in Solar panel size: 27*18*2cm/10.62*7.08*0.78inch Pump Size: Approx. 9.5*5.5*5cm/3.74*2.16*1.96inch Package Size: Approx. 30.2*18.5*7.2cm / 11.88*7.28*2.83inch Package Weight: Approx. 1.33KG / 2.93lb Package List: 1 * Solar Oxygen Pump 1 * Package of Accessory 2 * Air Stone 1 * 2.5M Aquarium Oxygen Pipe 1 * Manual (English) Note: This product is an electronic product. The oxygen-increasing device cannot be placed in water, and the diversion hole cannot be blocked.

    Price: 68.0 € | Shipping*: 0.0 €
  • Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black
    Solar Oxygen Pump Fish Tank Oxygenator Aquarium Oxygen Aerator Pond Aerator black

    Description: Solar oxygen pump with built in a 1800mAh lithium battery for storing energy, thus the oxygen pump working in the night as well. Just put the solar panel in a sunny spot and it starts automatically. Suitable for a small to medium sized pond, outdoor fish tank or water reservoir, etc. Features: [Environment-friendly Solar Energy]The use of solar energy makes it environment-friendly, portable and easy to install with no need for wiring, no operating cost and maintenance free, and solar power is much safer for your kid. [Large Air Volume]Stable silent oxygen pump with less than 60 dB low noise and 1.4L/min air volume, suitable for 40-250L container. [Battery Backup]Built in a 3.7V 1800mAh 18650 lithium battery pack for storing energy, thus the oxygen pump working in the night as well. [Evenly Air Distribution]There are 3 working modes can meet your different demands, and two air flow outlets make the air distribution more even and pervasive. [Adjustable Angle]The solar panel angle can be adjusted to receive the sunlight most sufficiently. Perfect for bird bath, small pond, garden decoration, water circulation for oxygen, etc. Product Working mode: Pattern 1: high speed (green light normally on) working hours: 24 hours,flow: 1.3 L/min Pattern 2: low (blue light normally on) working hours: 48 hours,flow: 0.7 L/min Pattern 3: Low gear Open 10 seconds stop for 10 seconds (green and blue double color light normally on) working hours: 72 hours Specifications: Material: ABS Solar panel:5W Polycrystalline solar panel included Battery:7.4V 2400mAH Product working voltage range:5.5V-8.4V Discharge protection voltage:5.5V Over charge protection voltage:8.4V Solar charge time: 8 hours Max. working current: 150MA (high grade); 100MA (low gear) Quiescent current: less than 10UA Noise: 60dB Min. Air Flow: 1.4L/min Working Time: Approx. 24 hours Oxygen Hose Length: 250cm / 100in Air stone deepth: 100cm/39.37in Wire length: 3M / 118in Solar panel size: 27*18*2cm/10.62*7.08*0.78inch Pump Size: Approx. 9.5*5.5*5cm/3.74*2.16*1.96inch Package Size: Approx. 30.2*18.5*7.2cm / 11.88*7.28*2.83inch Package Weight: Approx. 1.33KG / 2.93lb Package List: 1 * Solar Oxygen Pump 1 * Package of Accessory 2 * Air Stone 1 * 2.5M Aquarium Oxygen Pipe 1 * Manual (English) Note: This product is an electronic product. The oxygen-increasing device cannot be placed in water, and the diversion hole cannot be blocked.

    Price: 65.19 € | Shipping*: 0.0 €
  • What is the significance of yeast fermentation in biology?

    Yeast fermentation is significant in biology because it is a process that allows yeast cells to convert sugars into energy in the absence of oxygen. This process, known as anaerobic respiration, is important for the production of energy in organisms that live in low oxygen environments. Additionally, yeast fermentation is used in the production of alcoholic beverages and bread, making it an important part of food and beverage production. Understanding yeast fermentation is also important for studying cellular respiration and metabolism in organisms.

  • How do you remove yeast from the fermentation tank?

    To remove yeast from the fermentation tank, the most common method is to let the yeast settle to the bottom of the tank through a process called sedimentation. Once the yeast has settled, the clear liquid on top can be siphoned or pumped out, leaving the yeast behind. Another method is to use a centrifuge to separate the yeast from the liquid more quickly and efficiently. Additionally, some breweries may use filtration systems to remove the yeast from the liquid.

  • Why do organisms like yeast carry out alcoholic fermentation?

    Yeast carries out alcoholic fermentation as a way to generate energy in the absence of oxygen. This process allows yeast to convert sugars into ethanol and carbon dioxide, producing ATP which is used as an energy source for the cell. Alcoholic fermentation also helps yeast to survive in low oxygen environments, such as in the fermentation of bread, beer, and wine.

  • Is hops really hops?

    Yes, hops is really hops. Hops are the flowers of the hop plant, Humulus lupulus, and are used primarily as a flavoring and stability agent in beer. They contribute bitterness, aroma, and flavor to the beer, and are an essential ingredient in the brewing process. Hops also have potential health benefits, such as anti-inflammatory and calming effects. So, yes, hops is definitely hops!

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