Do you want to have more hop aroma in your IPA beer?

What actually cold hoppin is? The very simple solution for dissolving of hop pellets in cold beer and optimally transfer hops oils in beer.

The cold hopping device is used for the maceration of the hop aroma and oils into the cold beer without contact with air, in order to enhance the aroma and taste of beer. By using this device, beer can reach a rich scale with a unique, original, rich aroma and taste, finally original character.

How much of hops you should use for your hopping cycle…

Normal quantity of hops pellets for one hopping cycle is between 28–56 g of hops for a 19 L batch. If you want just a hint of hop aroma you might go as low as a 14 g. If you want your beer had pronounced hop bitterness, hop flavor and aroma, you might decide to use 112 grams.

However, You should also consider the variety of hops. If you use hops with high essential oil content, you most probably don’t want to use as much as you might if you were using something less oily.

Our advice with respect to the Hops Master 300 technical construction is, do not use more than 28 g for your first hopping cycle. This will give you a good initial idea of what the hopping process can do for your beer. Then you will be only limited by your own creativity and willingness to make new, new experiments.

To use our "Hops master 300" There are no limits.

Here it is, please familiarize yourself !!!!

The cold hopping device Hops Master 300 is used for the maceration of the hop aroma and oils into the cold beer without contact with air, in order to enhance the aroma and taste of beer. By using this device, beer can reach a rich scale with a unique, original, rich aroma and taste, finally original character.

 Hops master HR 300

  • Two sight glasses – DN 50 – vertically welded on the body of hopper – the operator can monitor the movement of hops inside the equipment
  • Tube DN 300 – 1000 mm length clamped connection (bottom and upper part) with silicon seal for easy assembly and disassembly of cold hopper for the sanitation and cleaning
  • Inside the inner tubular strainer – 0,5mm gap of screen, DN 100 and 1000mm length – big filtration surface – hops can not enter back to the beer tank. All hops remain in filtration vessel. Filter can be very easily removable for easy cleaning or its replacement.
  • The movement of beer in hopper is ensured by tangential outlet which is at the bottom.
  • Stainless steel pressure gauge with sanitary diaphragm – clamp connection 0-4bar – the operator can monitor pressure inside the hopper during the evacuation with CO2 and hopping process
  • Butterfly valve DN 15 with fitting for evacuation with CO2
  • Beer filling under pressure
  • Evacuation of beer by tap water
  • Stainless steel EBARA pump (80L/min) + control box, for pumping the beer from then through cold hopper, Pump suitable for food and beverage industry. Can be used for cold and hot hopping.
  • Butterfly valves DN 25/DN 32 or DN40, clamped or DIN, SMS connection (inlet, outlet, drain) according to the clients requirements
  • Whole technology is mounted on stainless steel frame with stainless steel casters – movable solution.
  • At the bottom the outlet for easy hops sludge discharging after the filtration process – easy sanitation
  • Straight sight glass which is installed on outlet tube – operator can check the quality of the beer on outlet
  • Material – stainless steel 1.4301 (AISI 304)


  • Frequency inverter for the a smooth operation of the EBARA pump, with control potentiometer, mounted in water proof box 
  • Additional filter for the Hops Master for filtration of the beer without residual yeasts 0.2mm
  • Seal of the pump for high temperatures up to 100°C


  • Cold hopping device can be flexible integrated in an existing system by using of flexible hoses
  • It provides an efficient extraction of aromatic components, which provides constant and defined flavouring
  • Better results with less amount of hop, compared to convent methods of dry hopping
  • It can be also used for additional hopping of hot wort after boiling process – additional hop aromatization between whirlpool and wort cooler
  • Due to fine filtration screen 0.2 or 0.5mm It ensures perfect separation of the extracted hop particles, there is no problems with filtration

For more information please contact:  Mr. Milan Janů  +420 739 518 466 or

Frequently Asked Questions

Question: How many kilograms of hops can be maximally used for one cycle of cold hopping?

Answer: The amount of hops depends on the diameter of the internal filter of the device, in general our company produces two types of HopsMaster, i.e. HM300 where the filter diameter is 100 and the filter length is 1000mm and HM500 where the filter diameter is 250mm and the filter height is 1000mm. The area of the filter is decisive for the maceration of the drink itself and determines how many kg of hop pellets can be used for one cycle of cold hopping. Generally, after dissolving the hop pellets in the HM body, a so-called filter bed is formed on the filter body, through which the drink passes and thus hop essences are extracted into the drink (beer). The user should therefore always choose such a quantity of hops that the pump is able to push the drink through the filtering surface of the filter (formed by the dissolved pellets) and some optimal flow rate is maintained. A common amount of pellets for one cycle is between 28-56g of hops per 19L of beer. If you want to achieve just a hint of hop aroma, you can use only 14 g of hop pellets. If you want your beer to have a distinct bitterness and hop aroma, we recommend using around 112 grams of hop pellets.

Question: How to sanitize HopsMaster

Answer: The entire HM device is designed to be completely disassembled, i.e. it can be completely disassembled and cleaned if necessary. After the end of the cold hopping process and depressurization of the container, residual beer that could no longer be squeezed back into the tank is released into the channel, then it is pulled out by internal filters (which can be washed with pressurized water) and then the entire HM body. After a thorough pre-washing, the entire HM is then assembled and connected to an external CIP unit and standard sanitation is carried out with 2% lye 65-70°C and weak peracetic acid max. 1%.

Question: Can the HM device be used to macerate a drink with, for example, herbs, oak flakes, spices or fresh fruit?

Answer: The HM device is widely used for the maceration of beverages, not only beer, for both cold maceration and/or maceration of warm beverages before cooling or bottling.

Question: Is the HM pump equipped with a frequency converter?

Answer: Yes, the HM pump is equipped with a frequency converter for continuous speed regulation, so that it is possible to control the flow through the HopsMaster filter

Q: What is the HM power supply?

Answer: The power supply is 230V AC, single phase

Question: Does the device need to be additionally mounted or adjusted before using it?

Answer: I deliver the HM to the customer completely assembled and ready for use, Plug&Play, no additional assembly is required, the customer will only use his own hoses (the hoses are not part of the device delivery).

Question: What type of connection does HM have?

Answer: Is it possible to supply HM with different types of connections according to DIN customer requirements? SMS and clamp, dimensions can also be adjusted on request...

Q: How is the device shipped?

Answer: The device is transported on a pallet, fully secured so that it is not damaged during transport

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