An 8 fl oz (237 mL) bottle of Kosterina Walnut Balsamic Vinegar from Modena, Italy, with a gray cap, dark liquid, and a label displaying the brand and product details in white and orange text. A dark glass bottle of Kosterina Walnut Balsamic Vinegar from Modena, Italy, with a black cap. The back label lists ingredients, uses, nutrition facts, a QR code, and a Naturally Gluten-Free badge. A fresh salad in a glass bowl with mixed greens, sliced red apples, walnuts, red onion, crumbled feta cheese, and a drizzle of Kosterina Walnut Balsamic Vinegar inspired by Modena, Italy. Text on a green background about 3,000 banned ingredients and a higher standard for home products.
Beyond Plastic Reduced Plastic Waste logo
An 8 fl oz (237 mL) bottle of Kosterina Walnut Balsamic Vinegar from Modena, Italy, with a gray cap, dark liquid, and a label displaying the brand and product details in white and orange text.

Kosterina Walnut Balsamic Vinegar

8 fl oz

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Nutty walnut flavor in balsamic vinegar.
  • A natural and versatile ingredient for cooking.
  • Adds a unique flavor to dressings.
Size: 1 bottle
Purchase options

Walnut Balsamic Vinegar $13.99

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

Kosterina balsamic vinegars are barrel-aged 6 years for a high-density, velvety balsamic, with no added sugar. Made from Lambrusco and Trebbiano grapes of Modena, Italy.

This walnut balsamic vinegar is filled in a separate facility from our olive oil, white balsamic (fruit vinegars), olives, spices and all other product lines.

Trebbiano and lambrusco cooked grape must, Wine vinegar, Black Walnut Concentrate.

No charcuterie is complete without this vinegar. It pairs perfectly with cheese, harvest bowls, goat cheese salad, or even baked into breads and desserts.

Grove Values

A flat lay of kitchen items on an orange background, including two lemons (one sliced), a cutting board, two cream-colored frying pans with gold handles, oven mitt, green olive oil bottle and can, and a carrot cake muffin mix pouch.
3,000+ BANNED INGREDIENTS

Healthier cookware, pantry staples, and more.

From snacks to saucepans, every product is reviewed to meet strict ingredient and material standards — reducing exposure to unwanted additives and plastics in your food and kitchen.

Three white silicone spatulas with colorful confetti-like speckles, displayed in different sizes against an orange circle background.

Screened for unwanted additives

Made without BPA, PFAS, melamine, or artificial preservatives

A stack of colorful, empty cupcake liners arranged on an orange circular background with one white liner set apart at the top.

Built for better cooking

Crafted from stainless steel, silicone, ceramic, and glass — not plastic

Two dark glass bottles of extra virgin olive oil with beige labels, one standing upright and one lying down, are placed on an orange circular background.

Less plastic, fewer microplastics

Reduced-plastic options that help limit waste and microplastic exposure

A close-up of a human fingertip with colorful microplastic particles on the skin, and images of a plastic bag, bottle, and six-pack ring layered in the corner, highlighting plastic pollution.

Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog