A close-up top-down view of Yerba Buena Tea Co. Irish Breakfast loose leaf black tea, showing a pile of dark, finely cut organic black tea leaves on a white surface.
A clear glass mug filled with deeply steeped Irish Breakfast black tea by Yerba Buena Tea Co., styled with scattered loose tea leaves, a metal mesh infuser, and the product tin in the background.
Front view of the signature black Yerba Buena Tea Co. tea tin for Irish Breakfast organic loose leaf black tea, featuring a dusty rose label with product details.

Organic Black Tea | Bold & Malty | High Caffeine

Organic Irish Breakfast Loose Leaf Black Tea

The bold one. Assam and Ceylon, blended for milk.

Ingredients: Organic Black Tea.

$18.00 USD
$18.00 USD
Shipping calculated at checkout.
Size: Signature Tin
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About Irish Breakfast

Built for Milk. Built for Mornings.

If your idea of a good morning starts with a cup so strong you can practically stand a spoon in it, you found your tea. Our Irish Breakfast blends Organic Assam from northeast India with bright Ceylon from Sri Lanka into a cup that is unapologetically bold. The Assam brings malt and muscle. The Ceylon adds a clean, citrusy lift that keeps the whole thing from going flat.

Why the Irish Got It Right

Ireland drinks more tea per person than almost any country on earth. Their secret is simple: use strong tea and do not apologize for it. We blended this the traditional way, with Assam as the backbone and Ceylon to round out the edges. Pour milk right in. Add sugar if you want. This tea was designed to take it.

Your Morning Anchor

Brew it strong. Use boiling water, a full teaspoon per cup, and steep four minutes. Pour over a splash of milk and you have got a cup that rivals any coffee shop latte for a fraction of the cost. Ingredients certified USDA Organic and hand-blended in our Salem, Oregon kitchen.

Organic Ingredients
  • Organic Black Tea
Tasting Notes

Aroma: Deep malt, toasted grain, and a touch of dark honey. Bolder and more assertive on the nose than English Breakfast.

Flavor: Full-bodied and muscular. The Assam base delivers roasted malt and brown sugar sweetness, while Ceylon adds a brisk, citrus-edged brightness that keeps the cup lively. Stands up beautifully to milk.

Finish: Brisk and tannic with a lingering warmth. Clean astringency that resets the palate and invites the next sip.

Why You'll Love It

Sustained Morning Energy: Black tea has been valued for centuries as a natural source of sustained energy. The caffeine in Camellia sinensis works alongside L-theanine, an amino acid that research suggests may promote focused alertness without the jittery spike associated with coffee.

Digestive Comfort: In British and Irish tea traditions, strong black tea has long been consumed with meals to support digestion. The tannins in black tea have historically been associated with soothing the stomach after rich foods.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Front view of the signature black Yerba Buena Tea Co. tea tin for Irish Breakfast organic loose leaf black tea, featuring a dusty rose label with product details.

Irish Breakfast

$18.00 USD
$18.00 USD

Steep strong. Sip bold.

A clear glass mug filled with deeply steeped Irish Breakfast black tea by Yerba Buena Tea Co., styled with scattered loose tea leaves, a metal mesh infuser, and the product tin in the background.

Heritage Brew Guide

8oz
212°F
1.5tsp
5min
1 Cup
Imperial Metric

Craft Your Cup

  • The Builder's Mug: Steep 4 minutes with boiling water. Add a splash of whole milk and a half-teaspoon of sugar. This is the strong, creamy cuppa that fuels a proper morning.
  • Iced Irish Breakfast: Brew double-strength (5g per 8oz), steep 3 minutes, then pour directly over a full glass of ice. The high tannin content prevents flavor washout. Add simple syrup and lemon for a killer summer iced tea.
  • Breakfast Tea Latte: Steep 5 minutes extra strong, then top with steamed oat milk and a dusting of cinnamon. A coffee-shop-quality drink from your own kitchen.

A close-up top-down view of Yerba Buena Tea Co. Irish Breakfast loose leaf black tea, showing a pile of dark, finely cut organic black tea leaves on a white surface.

Your Questions About Irish Breakfast, Answered.

Is Irish Breakfast stronger than English Breakfast?

Yes. Irish Breakfast is the bolder of the two. It uses a higher proportion of Assam tea, which delivers a malty, full-bodied character and more caffeine. English Breakfast is typically lighter and smoother, blending Keemun, Ceylon, and Assam in more balanced ratios. If you want your morning tea to stand up to milk and sugar without losing its identity, Irish Breakfast is the stronger choice.

How much caffeine does Irish Breakfast tea have?

Expect approximately 50 to 90 mg of caffeine per 8 oz cup, depending on steep time and leaf amount. That puts it at the high end for tea, comparable to a light cup of coffee. The Assam component is responsible for most of that kick, the assamica varietal naturally produces more caffeine than highland teas, which is part of what makes Irish Breakfast a serious morning tea.

What is the difference between Irish Breakfast and English Breakfast tea?

The core difference is blend composition and strength. Irish Breakfast relies heavily on Assam, an Indian tea known for malty boldness and high caffeine. English Breakfast typically incorporates Keemun (Chinese) and Ceylon alongside Assam, creating a smoother, more nuanced but less aggressive cup. Irish Breakfast is the choice when you want your tea bold enough to stand up to a generous splash of whole milk. English Breakfast is the more refined sibling.

FAQs Simply Answered

Are your teas organic?

The Short Answer: Yes. Every single leaf, root, and flower we source is Certified USDA Organic.

The Details: We believe that flavor starts in the soil. We strictly partner with growers who practice sustainable, organic farming, organic approved pesticides, no GMOs, and no "natural flavorings" sprayed on the leaves. While our Salem facility is a dedicated small-batch kitchen (and not yet a certified processing plant), our commitment to 100% organic ingredients is absolute. You are drinking pure nature, nothing else.

What are the "Refill Bags"?

We designed our system to be sustainable.

Our Signature Tin, protects the tea and contains all the detailed brewing and ingredient information.

The Refill: When you run low, you buy a Refill Bag.

Please Note: These biodegradable bags are designed as "Transport Vessels" only. They are not intended for individual sale. Upon arrival, please use the refill bag with into your YBTCO Tin. This ensures your tea stays fresh and you have the correct brewing instructions at hand.

Where is this made?

Handcrafted in Oregon.

Every batch of Yerba Buena tea is blended, tested, and packed in our dedicated tea kitchen in Salem, Oregon. We do not use co-packers or giant industrial machines. We blend in small lots to ensure that the oils are still volatile and the spices are still punchy when they reach your cup. It is a difference you can taste.

Is it safe for allergies (Gluten/Nuts)?

We keep it clean. All YBTCO teas are naturally Gluten-Free, Dairy-Free, and Vegan. Our facility does not process wheat, soy, peanuts, or dairy.

The Coconut Note: The only allergen present in our facility is Coconut (Tree Nut), which is used in specific blends like Maven Blend and Turmeric Spice. We adhere to strict cleaning protocols to prevent cross-contamination, but if you have a severe tree nut allergy, please shop with caution.

When will my order ship?

We know you are ready to brew. Because we hand-pack orders, they typically leave our Oregon kitchen within 2-3 business days.

  • Free Shipping: We cover the shipping on all US orders over $70.
  • The Carriers: We ship via USPS and UPS. You’ll get a tracking number the second your label is printed so you can follow the tea to your doorstep.

Refer to our Shipping Policy for complete information.