Lalvin QA23™ was selected in Portugal by the University of Tras os Montes e Alto Douro (UTAD) in cooperation with Viticultural Commission of Vinhos Verdes region.
Lalvin QA23™ has a very high β-glucosidase activity, an enzyme which helps to cleave non-volatile aromatic compounds into their volatile state. Hence this yeast contributes to varietal / terroir fruit expression. Its use for Sauvignon Blanc is therefore highly recommended. Known for its reliability and robustness, Lalvin QA23™ tends to ferment well in clarified juice, low in nutrients.
Saccharomyces cerevisiae var cerevisiae
Typical analysis (in compliance with OIV codex):
Viable yeast > 1010 CFU/g
Dry matter > 92 %
- Average lag phase and vigorous fermentation
- Low relative nitrogen demand (under controlled laboratory conditions)
- Very low H2S production
- Alcohol tolerance of 16% v/v (depending on fermentation conditions)
- Low SO2 production
- Fermentation temperature: 14-28°C (57-82°F)
- Competitive killer factor: yes
- Malolactic-bacteria compatibility: very high
- Low foam producer
DOSAGE RATE: 1 x 5g sachet for 4.5 – 23L
1. Rehydrate the yeast in 50ml of water, at a temperature between
2. Dissolve by gently stirring and wait for 20 minutes.
3. Add the must. The difference in temperature between the must
to be inoculated and the rehydration medium should not be
higher than 10°C (if necessary, acclimatize the temperature of
the medium by slowly adding must).
4. The total rehydration time should not exceed 45 minutes.
5. It is crucial that a clean container is used to rehydrate the yeast.
6. Rehydration in must is not recommended.
All orders placed before 1pm will be dispatched the same day, although we will strive to dispatch all orders as soon as possible.
We use Royal Mail 48 Tracked for most orders, although also use DHL for next day delivery if chosen at checkout and also for some of our bigger orders.
Shipping time might vary depending on location and other factors.
If you require any items in a hurry, please get in contact and we will see what we can do to accommodate this.
Orders over £60 will have free shipping.
Orders under £60 will be charged for shipping depending on your chosen delivery method and country. Full price will be displayed at checkout.
Up to 250g - £2.00
251-500g - £3.00
501g-5kg - £4.99
5kg-15kg - £6.99
15kg and over £7.99
Refunds & Returns
Refunds & Returns
Thanks for shopping at Brewco Brewing LTD.
If you are not entirely satisfied with your purchase, we're here to help.
You have 30 calendar days to return an item from the date you received it.
To be eligible for a return, your item must be unused and in the same condition that you received it.
Your item must be in the original packaging.
Your item needs to have the receipt or proof of purchase.Refunds
Once we receive your item, we will inspect it and notify you that we have received your returned
item. We will immediately notify you on the status of your refund after inspecting the item.
If your return is approved, we will initiate a refund to your credit card (or original method of payment).
You will receive the credit within a certain amount of days, depending on your card issuer's policies.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable.
If you receive a refund, the cost of return shipping will be deducted from your refund.
If you have any questions on how to return your item to us, contact us.
Email - firstname.lastname@example.org