101WINEMAKING.COM      
42.4883667, -77.113860700000038

 

  
 

MAY YOUR WINES FALL BRIGHT!    
Shipping daily  

fallbright mobile shop online qr 
Inventory PRICES reduced.  All inventory is on Dutch St.  
Call to order, if you want.  The online cart has closed, but I can still send orders out and take credit cards from the house. 

Call 607-368-3449 if you want to meet me here. 
 

Antioxidant (and anti-bacterial) 

Potassium Metabisulfite
: an anti-oxidant and anti-bacterial additive. The recommended rate is 20 to 40 OR 50 ppm, the lesser amount for red, as it has bleaching characteristics. “Meta” is added at racking. It can also be used for cleaning and chasing chlorine rinses.

Red wine is dosed with meta at the rate of 1/8 teaspoon per 5 gallons for 20 PPM.

White wine is dosed with ¼ teaspoon per 5 gallons for 40 ppm.

CALCULATING SO2 ADDITIONS  (POTASSIUM METABISULFITE) 576% (0.576) OF POTASSIUM METABISULFITE IS ‘ACTIVE’
Example: to add 50 ppm to 100 L
Desired addition (g/L)* volume (L)/0.576=grams of Meta to add
50 ppm = 50 mg/L = 0.050g/L
0.050*100 (liters)/0.576=8.6 grams of meta to add to 100L for 50ppm

100 Liters is 26.42 gallons


Do NOT use if planning a malolactic fermentation. The sulfur level must be 10-20 ppm or less for malolactic bacteria to survive. If you are planning a malolactic fermentation and are comfortable without its use, then go without.

Campden Tablets are a tablet form of Sodium or Potassium Metabisulfite for use in small lots. One tablet is 75-120 ppm in 1 gallon. We have seen ratings using both numbers. It makes us wary. Read the  label.

To further prevent oxidation, keep your fermenting vessel topped up to minimize the air space as much as possible.  Keep it topped up.

Use an airlock, keep the water level in it high enough.  Check that the bung and airlock unit have not been knocked off.

 

IF your wine is oxidized, fine it with pvpp: polylact or polyclar.  This fining agent reduces browning and enhances flavor. 

Departments

May Your Wines Fall Bright!