The Complete Homebrew Bottling Day Checklist

Bottling day is either the most satisfying or the most frustrating part of homebrewing. The difference? Preparation. I've bottled over 200 batches, and the sessions that went sideways almost always came down to forgetting something simple, like not having enough caps, or realizing my priming sugar was still in the pantry after I'd already racked.

This checklist is the one I actually use. Print it out, tape it to your brewing fridge, whatever works. It'll save you from the mistakes I've already made for you.

One Week Before Bottling

Yes, bottling day prep starts a week early. This is the stuff that catches people off guard when they try to scramble last minute.

• Collect and inspect bottles: You need roughly 48-53 twelve-ounce bottles per 5-gallon batch. Check every bottle for chips, cracks, or residue. Reject anything questionable
• Verify you have enough caps: Buy more than you think you need. Caps are cheap, ruined batches aren't
• Check your gravity readings: Take a reading now and again in 2-3 days. If they match, you're ready. If not, give it more time
• Stock sanitizer: Make sure you have enough Star San or your preferred no-rinse sanitizer. You'll need more than you think for all those bottles

The Night Before

• Clean all bottles: Remove labels if reusing commercial bottles. A baking soda soak overnight works wonders for stubborn labels
• Organize your workspace: Clear your bottling area. You need a surprising amount of counter space for bottles, the bottling bucket, tubing, and capper
• Verify equipment: Bottling bucket with spigot, auto-siphon, bottling wand, bottle capper, and tubing. Test the spigot, a slow leak during bottling is a nightmare

Bottling Day Morning: Setup

Give yourself 2-3 hours for a full bottling session. Rushing leads to contamination and mistakes.

Sanitize everything

• Bottling bucket, spigot, and lid
• Auto-siphon and all tubing
• Bottling wand
• All bottles (submerge and drain, no rinsing with Star San)
• Bottle caps (brief soak is fine)
• Any spoons or measuring tools you'll use
• Hydrometer and test jar for final gravity reading

Prepare priming sugar

The standard is 3/4 cup (about 4 oz by weight) of corn sugar for a 5-gallon batch of ale at room temperature. But "standard" is imprecise, the correct amount depends on your beer volume, style, and temperature.

• Weigh your sugar (scale is more accurate than measuring cups)
• Dissolve in 1-2 cups of boiling water
• Let it cool to room temperature
• Add to the empty, sanitized bottling bucket BEFORE racking beer on top

Racking onto the sugar solution ensures even distribution. Dumping sugar into beer and stirring introduces oxygen and distributes unevenly. Some bottles will be flat, others overcarbonated.

The Bottling Process

1. Take your final gravity reading, record it. You need this for your ABV calculation
2. Rack beer onto priming sugar, gentle siphoning, keep the end of the tubing submerged to minimize splashing. Leave the trub behind
3. Let it mix gently, some brewers give one very gentle stir with a sanitized spoon. Minimal agitation is key
4. Attach bottling wand to spigot, the spring-tip valve makes filling clean and easy
5. Fill bottles to the top, when you remove the wand, the displacement creates the right amount of headspace (about 1 inch)
6. Cap immediately, don't let filled bottles sit open. Oxygen is the enemy now
7. Set aside upright at room temperature, 68-75°F for most ales. The yeast needs warmth to carbonate

After Bottling: Conditioning

Most homebrewers check bottles too early. Here's the realistic timeline:

• Week 1: Yeast is consuming priming sugar and producing CO2. Don't open anything
• Week 2: You can test one bottle. It'll probably be under-carbonated and taste green. That's normal
• Week 3: Most standard ales are properly carbonated by now. Test another bottle
• Week 4+: Many beers continue improving. Higher-gravity beers especially benefit from 4-8 weeks of conditioning

Common Bottling Day Mistakes

• Not enough sanitizer contact time: Star San needs 30 seconds of contact. Don't rush it
• Splashing during transfer: Once fermentation is done, oxygen is your enemy. Gentle, quiet transfers only
• Inconsistent fill levels: Leads to inconsistent carbonation. Use the bottling wand technique, fill to the brim, remove wand, perfect headspace
• Storing bottles on their side: The yeast sediment distributes along the bottle wall and you'll pour cloudy beer. Store upright
• Warm storage location: 68-75°F is ideal for conditioning. Above 80°F can produce off-flavors. Below 60°F and carbonation stalls

Bottling day is simple when you're organized. The checklist approach removes the stress and lets you enjoy the process. Your future self, the one drinking perfectly carbonated homebrew three weeks from now, will thank you for taking the time to do it right.