Is Coffee High in Oxalates? Here’s What You Should Know About Clean Coffee and Kidney Health

When it comes to coffee and wellness, the conversation is getting smarter. More and more people are asking: “Does coffee have oxalates?” “Is my morning brew impacting my kidney health?”

If you're on a low-oxalate diet, have a history of kidney stones, or are simply looking to make healthier choices, this post is for you.

Let’s break down the truth about oxalates in coffee, and why clean, high-quality coffee—like what we roast at Brown Sugar Coffee Roastery—can still be part of a healthy lifestyle.

High Quality Coffee is Low in Oxalates

🧪 First Things First: What Are Oxalates?

Oxalates (or oxalic acid) are naturally occurring compounds found in many plant foods like spinach, beets, rhubarb, and nuts. For most people, oxalates aren’t a problem—but for some, especially those prone to calcium oxalate kidney stones, high-oxalate foods can increase risk.

☕ So... Is Coffee High in Oxalates?

Here’s the good news: Black coffee is actually low in oxalates. Studies show that plain, brewed coffee contains about 0.7–2 mg of oxalates per cup—a very small amount, especially when compared to high-oxalate foods like spinach (656 mg per 1/2 cup) or almonds (122 mg per ounce).

✅ Low oxalate coffee exists—and you may already be drinking it.

The key? Choose clean coffee made from high-quality, properly processed beans.

💡 What Makes Coffee “Clean”?

At Brown Sugar Coffee Roastery, we’re all about clean coffee. That means:

• Organic or consciously sourced beans

• Fresh-roasted in small batches to preserve flavor and reduce contaminants

• Free from mold, mycotoxins, additives, and harsh chemicals

• No fillers or flavorings that could affect oxalate content

Our roastery uses a 12-kilo gas roaster to maintain maximum purity and flavor, while our packaging process protects freshness—so what you brew is as clean as it gets.

🧘🏽‍♀️ Can Coffee Still Be Healthy?

Absolutely. In fact, clean, black coffee offers several science-backed health benefits:

• 💪 Rich in antioxidants that fight inflammation

• 🧠 Improves mood and mental clarity

• 💓 Supports cardiovascular health in moderation

• 💧 Can be safely consumed on a

  
  

   (especially when oxalate content is low)

Many people cutting back on oxalates are happy to learn they don’t have to give up their morning cup—they just need to choose the right kind.

⚠️ A Quick Tip for Kidney Health

If you're watching oxalates or managing kidney health, consider:

• Sticking to 1–2 cups of black coffee per day

• Avoiding added flavored syrups, creamers, or non-dairy additives (some may contain hidden oxalates)

• Staying hydrated—drink plenty of water throughout the day

🏆 The Brown Sugar Difference

We believe coffee should be both delicious and nourishing. That’s why we:

• Prioritize quality beans and clean roasting practices

• Offer organic and low-toxin options

• Make our coffee accessible in bags, pouches, and K-cups—so clean coffee fits your lifestyle

Whether you're shopping for low-oxalate coffee, clean coffee, or simply want to feel good about your daily brew, you’re in the right place.

Final Pour: Coffee That Loves You Back

So, does coffee have oxalates? Technically, yes—but the amount is low, and when you drink clean, high-quality coffee, the benefits far outweigh the risks for most people.

At Brown Sugar Coffee Roastery, we’re here to help you sip smart, live well, and enjoy coffee that works with your body—not against it.

👉 Explore Our Clean Coffee Selection