
Once I added my yeast (known as 'pitching' to brewers) I wrapped my carboy up in HVAC insulation and a sweater to help keep it warm and prevent UV exposure. These warm temperatures will help ensure a thorough fermentation as Belgian yeasts really like it warm. It also promotes the formation of esters and phenols, the most intense varieties of flavor compounds that yeast can make. The photo on the left shows what the beer looked like 24 hours after pitching. The color is creamy and homogeneous from the yeast in suspension. It also has a bubbly, pale green-gray colored cloud of protein and yeast on top known as krausen. The yeast is consuming the sugars in the wort and producing alcohol and CO2, which is being released through the one way valve on top known as an airlock. This is what you want to see!
I reviewed my initial recipe a bit and decided to up the quantity of peaches from 6 pounds to 10. I really wanted the peach flavor to shine, and went all the way down to Niagara on the Lake to buy some of the best peaches that Ontario has to offer. I cut and pasteurized all the fruit by vacuum packing them into bags and cooking them in 170F water bath for an hour. This makes sure that any bacteria on the peaches doesn't make it into my beer alive and cause it to spoil. This all went into the bottom of my plastic fermenter bucket (a little less glamorous than a carboy, but equally effective).
The beer was racked over the peaches, and secondary fermentation ensued over the next two weeks. During this time the yeast first ate and fermented the new sugars from the peaches. Afterwards it refines the existing flavor compounds. This refinement is known as conditioning, and really cleans up the flavor of the final product.




