T90 Flashcards
What does T90 stand for in T90 hop pellets?
Type-90, which means that about 90% of the original bale mass ends up in the pellet.
How are T90 hop pellets prepared?
Made up of hop powder, prepared by milling dried hops.
What is the purpose of using CO2 in the preparation of T90 hop pellets?
To help protect the hop contents from oxidation.
What are the two main applications of T90 hop pellets?
- Bittering
- Aroma
When can T90 hop pellets be added during the brewing process?
- During wort boiling
- During fermentation/maturation as a dry hop
What is the average percentage of total resins in T90 hops?
0.5-3%
What is the average protein content in T90 hops?
15%
List the components of T90 hops and their average percentages.
- Total resins: 0.5-3%
- Proteins: 15%
- Monosaccharides: 2%
- Polyphenols (tannins): 4%
- Pectins: 2%
- Amino acids: 0.1%
- Lipids, waxes and sterols: Trace-25%
- Ash: 8%
- Moisture: 6%
- Cellulose, etc.: 43%
What is one key advantage of T90 hop pellets related to blending?
Hops of the same variety but with differing α-acid levels can be blended to achieve a standard hop pellet product with a single α-acid level.
What is a disadvantage of T90 hop pellets regarding oxidation?
They can be prone to oxidation if not protected by an inert gas.
What is a significant advantage of T90 hop pellets in terms of storage?
Easier to store than whole hops.
What does T45 stand for in T45 hop pellets?
Type-45, which indicates a higher content of resins and essential oils.
What process is used to enhance the separation of lupulin glands in T45 hop pellets?
Chilling and milling the hops at around -35°C.
How much of the vegetative matter is removed in T45 hop pellets?
Around 50-60%.
What is one main advantage of T45 hop pellets compared to T90 hop pellets?
Nearly double the α-acid and essential oil content.
Can T45 hop pellets be used for bittering or aroma?
Yes.
What can the discarded vegetative matter from T45 pellets be used for?
To standardise hop pellets to a specific α-acid content.
True or False: T90 hop pellets have lower hop utilisation than whole cone hops.
False.
Fill in the blank: T90 hop pellets are usually stored in _______ kg bags.
5-10
