Baltic Porter
intro
Rich, smooth, full-bodied dark lager with roasted malt, dark fruit, and subtle chocolate notes. This homebrew recipe delivers classic, warming Baltic Porter perfect for cold winter evenings.
Ingredients
Steps
Mash the grain bill
Heat 3000 ml of filtered water to 67°C (153°F) in a large 6L stockpot over medium heat. Add all crushed malts (Munich, chocolate, caramel, roasted barley) and stir thoroughly to eliminate dry clumps. Hold the temperature steady at 65–68°C (149–154°F) for 60 minutes, keeping the pot covered and checking temperature every 10 minutes; add 60ml increments of boiling water if the temperature drops below range. The finished mash will smell of sweet, toasted grain with dark chocolate notes.
Strain and sparge grains
Set a fine-mesh strainer lined with double-layer cheesecloth over a second clean 6L stockpot. Pour the entire mash (grain and sweet wort) through the strainer to separate liquid from spent grains. Slowly pour 1000 ml of 77°C (170°F) filtered water over the grain bed to rinse residual sugars from the grains, collecting all dark runoff in the pot below. Discard the spent, damp grains once draining completes.
Boil wort with hops
Place the pot of collected wort on the stovetop over high heat, bring to a steady rolling boil (100°C/212°F), then set a timer for 60 minutes. Add 10 grams of Hallertau hops immediately at the start of the boil for mild bitterness, then add the remaining 4 grams of Hallertau hops during the final 15 minutes of the boil for aroma. Keep the pot partially covered to prevent boilovers, adjusting heat to medium-high to maintain a gentle roll without spilling.
Cool and pitch yeast
When the 60-minute boil ends, turn off the heat and set the sealed pot in an ice bath (kitchen sink filled with equal parts cold water and ice) until the wort cools to 12°C (54°F), about 20 minutes. Pour the cooled wort into a sanitized 4L (1-gallon) glass fermentation jug, add the entire packet of Baltic lager yeast, and seal the jug with an airlock filled halfway with no-rinse brewing sanitizer.
Conduct primary fermentation
Move the sealed fermentation jug to a dark, temperature-controlled space held steady at 10–13°C (50–55°F) for 2 weeks. Check the airlock every 3 days to confirm active fermentation (steady bubbling) slows to 1 bubble every 30 seconds or less by the end of the 2-week period. Do not open the jug during this time to avoid bacterial contamination.
Bottle with priming sugar
Boil 28 grams of dextrose in 100 ml of filtered water over high heat for 5 minutes, then cool to 12°C and add to a sanitized food-grade plastic bottling bucket. Siphon the fully fermented porter from the glass jug into the bottling bucket, stirring gently with a sanitized spoon to evenly mix the sugar solution. Fill sanitized 355ml (12oz) brown glass bottles, cap tightly with sanitized metal crown caps, and return bottles to the same dark 10–13°C space.
Condition, chill, and serve
Let bottles condition and carbonate at 10–13°C for 2 full weeks, then move bottles to a refrigerator set to 4°C (39°F) for 48 hours to chill completely. Pour slowly into a thick-walled pint glass, leaving the thin layer of yeast sediment at the bottom of the bottle, to serve. The finished porter will pour deep ebony with a thick, tan, creamy head.
Tips
2.Maintain the steady 10–13°C (50–55°F) fermentation temperature strictly; warmer temperatures will produce fruity, solvent-like off-flavors that clash with Baltic Porter’s signature smooth, clean lager profile.
3.Resist the urge to open bottles early: the full 2 weeks of conditioning time allows carbonation to develop and harsh young beer flavors to mellow into the style’s characteristic rich, rounded taste.

OMG, I’ve been trying to nail a solid Baltic Porter for over a year now and this recipe is a total game changer! The dark malt balance is perfect, not too bitter, just that smooth, toasty, slightly chocolatey note I’ve been chasing. Brought the first batch to our neighborhood potluck last weekend and people were begging me to bring growlers to the next one. Only note: I accidentally let the primary ferment run a day longer than recommended and it still turned out chef’s kiss. 10/10, will brew again as soon as this keg kicks!
Was a little nervous to tackle this since I’ve only done basic extract brews before, but the step-by-step instructions made it so doable! The active prep was exactly 2 hours like the recipe said, no weird surprise steps. My husband said it tastes better than the imported Baltic Porter we splurge on at the liquor store around the holidays. SO good.
Game changer for our fall camping trips! I bottled this back in late August, cracked the first one on our trip up to the Smokies last week and it was *perfect* around the campfire. Has that rich, almost coffee-like finish that pairs so well with brats and s'mores. Only tiny gripe: I wish the recipe noted how much headspace to leave in the bottles, I overfilled a couple and had a minor gusher incident when I opened the first one lmao.
Solid recipe, but I upped the chocolate malt by 2 oz for a deeper roast note and cut the noble hops just a touch to make it a little smoother for my taste. Turned out great, even with my tweaks. Will probably stick to my adjusted version for future batches but this is an amazing base to work from.
Brewed this for our annual holiday party last year and people are still asking me when I’m making it again! It’s rich enough to stand up to all the heavy holiday food — prime rib, roasted veggies, even the chocolate yule log — but not so heavy that people feel sluggish after one. Total crowd pleaser.
I’m so stoked to try this, it looks incredible! Quick question though — I don’t have a temperature-controlled fermentation chamber, will this still turn out okay if my basement stays around 62 degrees this time of year? I really want to make this but I don’t wanna drop a bunch of money on gear just yet.
I was skeptical a homemade porter could compete with the stuff I get at my local craft brewery, but WOW. This is so smooth, no weird harsh alcohol bite, just that perfect malty sweetness with a hint of dark fruit on the finish. My roommate who swears she only drinks IPAs even asked for a second glass! Game. Changer.
Paired this with my famous smoked brisket over the weekend and it was a match made in heaven. The slight roastiness of the porter cut through the fattiness of the brisket perfectly, and the carbonation was spot on after 3 weeks of bottle conditioning. Will absolutely be making this a regular on my brew rotation.
I’ve made a bunch of hard ciders before but this was my first ever beer brew, and I was so worried I’d mess it up! The instructions were super clear, even for a total beer newbie, and 4 weeks later I’ve got a batch of porter that my adult kids loved when they stopped by to help me bottle — they’re already begging me to make more for Thanksgiving. My only mistake was not making a double batch, I already know this is gonna go way too fast!
Took this to our tailgate last weekend for the UGA game and it was a massive hit. Even the guys who usually bring cheap light lager were coming back for refills. It’s got enough flavor to be interesting but it’s not so heavy that you can’t enjoy a couple while you’re grilling and yelling at the TV. 10/10, will brew for every tailgate this season.
Solid base recipe, I added a couple ounces of cold brewed coffee to the secondary ferment for a little extra kick and it turned out insane. If you’re a coffee fan like me, I highly recommend that little tweak — it doesn’t overpower the malt, just adds a nice deep, roasty layer that feels perfect for cold weather.
I was worried the 4 week total time would be a hassle, but the active prep is only 2 hours which is totally doable to knock out on a Sunday afternoon while I’m doing meal prep for the week! I bottled these last night and I’m already counting down the days until I can crack the first one. The wort tasted amazing when I was transferring it, so I have high hopes.
I’ve been homebrewing for 12 years and this is hands down one of the best Baltic Porter recipes I’ve ever tried. The malt bill is perfectly balanced, no weird overcomplicated additions, just classic, clean, rich porter that tastes like it came straight from a Baltic coastal brewery. I’ll be passing this along to all my homebrew club friends for sure.
Brewed this for my partner’s birthday since Baltic Porter is his absolute favorite, and he said it’s better than any he’s had on our trips to visit his family in Poland! I was so nervous I’d mess up the fermentation temps, but I wrapped the fermenter in a sweatshirt and kept it in our coolest closet and it turned out perfectly. He’s already asking when we can brew another batch.