Chestnut chip mashing instructions: Heat 5 gallons of water to about 160-170 degrees and add bag with chips to pot. Add pectinase and amylase per manufacture's directions. Chestnuts are really a fruit and the pectinase will create a much clearer end product by dissolving suspended pectins. Add water needed to fill brewing pot. Allow to soak 12-24 hours [24 is better] to obtain maximum enzyme action. During soak, raise and lower grain bag a couple times an hour when possible to get maximum sugar extraction. At the end of the soak you should have a brix of 4-5%. Remove the chip bag and allow to drain as much as possible back into pot. You will lose 3-4 quarts of fluid absorbed into chips.

Add oats to chestnut chips 30 minutes prior to boil.

Bring wort to boil, and primary fermentable sugars, return to boil and achieve hot break.

Add hops and other ingredients according to schedule.

Chill wort until appropriate temperature to pitch yeast.

Brewing notes: Adapted from 'Dual Spires Black Lodge Ale'