How to Adjust Your Coffee Grind Size for a Pour-Over: A Step-by-Step Guide

Quick answer

For pour-over coffee, aim for a medium-fine grind, similar to sea salt. Start there, then adjust based on taste: if your coffee tastes sour and weak, grind finer; if it tastes bitter and harsh, grind coarser. Each small adjustment changes extraction, so go one step at a time.

Getting the grind size right is the single most important variable in a great pour-over. Too coarse and your coffee extracts too little, tasting sour and thin. Too fine and it over-extracts, turning bitter and drying. The sweet spot is a medium-fine grind, but finding it requires a little trial and error—and that's exactly what this guide is for.

We'll walk you through the steps to dial in your grind, from evaluating your current settings to making precise adjustments. Along the way, we'll flag common mistakes and give you checkpoints to keep you on track. Whether you're using a hand grinder or an electric one, these principles apply.

1. Start with the Right Reference Point

Before you touch your grinder, know what to aim for. Pour-over grind should be medium-fine, with particles that feel like sea salt or fine sand. If your grounds look like powder, they're too fine; if they look like breadcrumbs, they're too coarse. This visual and tactile check gives you a solid starting point.

Different pour-over methods may call for slight variations—e.g., a Chemex often benefits from a slightly coarser grind, while a V60 might need a touch finer. But for most home brewers, medium-fine is where the magic happens. Write down your grinder's setting so you can reproduce it later.

• Common mistake: relying on 'numbers' alone. Grinders vary, so use texture as your guide, not just the dial position.

2. Dial in Your Grind with a Test Brew

Set your grinder to a medium-fine setting and brew a small test batch. Use a 1:16 coffee-to-water ratio—for example, 20 grams of coffee to 320 grams of water. Keep your water temperature steady around 200°F, just off the boil. This gives you a baseline to evaluate.

Time your brew: a pour-over typically finishes in 2.5 to 3.5 minutes. If it's much faster, your grind is likely too coarse; if it's much slower, it's too fine. Use your taste and the timer as feedback. This first brew may not be perfect, and that's okay—it's your reference point.

• Checkpoint: note the brew time and flavor profile (sour, bitter, balanced) for your baseline.

3. Adjust Based on Taste

Taste is your ultimate guide. If your coffee tastes sour, salty, or lacks sweetness, your grind is too coarse and under-extracting. Grind finer by one click or a small notch. If it tastes bitter, astringent, or hollow, you're over-extracting—grind coarser. Make one adjustment at a time and brew again.

Each change shifts extraction, so move in small increments. A single click on a good grinder can make a noticeable difference. Give each adjustment a fair shot; don't change two variables at once, or you won't know what worked.

Remember, the goal is a balanced cup that's sweet, tangy, and smooth. If you're tasting the blend's notes—like the graham cracker and molasses in Even Keel Half-Caff—you're on the right track.

• Common mistake: making multiple changes at once. One variable at a time is the way to dial in.

4. Fine-Tune with Extraction in Mind

Understanding extraction helps you make smarter adjustments. Under-extracted coffee tastes sour and watery; over-extracted coffee tastes bitter and dry. Your grind size directly controls the surface area exposed to water, so it's the fastest lever to pull.

If your coffee is consistently sour, go finer; too bitter, go coarser. But also watch your pour technique—a slow, even pour helps extraction. If you're still struggling, check your water temperature and ratio before changing the grind again. Small tweaks in other variables can complement your grind adjustments.

This iterative process—brew, taste, adjust—is how you'll hit that perfect cup. It takes a few tries, but the payoff is worth it.

• Checkpoint: Once you hit a balanced cup, note the exact grind setting and brew parameters for future consistency.

The 5-step pour-over grind adjustment process

1. Choose a reference grind: Set your grinder to a medium-fine texture, like sea salt. This is your baseline. Checkpoint: visually inspect the grounds before brewing.
2. Brew a test batch: Use a 1:16 ratio and aim for a 2.5–3.5 minute brew time. Checkpoint: note the time and taste.
3. Evaluate the flavor: Sour means too coarse; bitter means too fine. Trust your palate. Common mistake: guessing instead of tasting.
4. Make one adjustment: Change the grind by one click or small notch, then brew again. Checkpoint: change only the grind, nothing else.
5. Repeat until balanced: Keep brewing and adjusting until the cup tastes sweet, tangy, and smooth. Once perfect, lock in the setting.

Coffee that rewards a careful grind

• Even Keel Half-Caff: A blend of caffeinated and decaffeinated organic coffees with notes of graham cracker and molasses, smooth and satisfying all day long. Its balanced profile is forgiving of slight grind inconsistencies, making it a great choice for practicing your pour-over technique without wasting a precious single-origin.
• Okoluu – Natural Sundried: A natural-sundried coffee from small farms in Okoluu, with fruit and floral complexities deepened by slow drying. Natural processed coffees can be more sensitive to grind size; with a precise grind, you'll unlock its vibrant fruit notes. Over-extract it, and those delicate flavors turn muddy.

Dialing in your pour-over grind size is a skill that improves with practice. Start with a medium-fine reference, brew, taste, and adjust one step at a time. Before long, you'll be pulling rich, balanced cups—and you'll know exactly how to adjust for any coffee you brew.