Ferment & Fire - Product Shot
starter_set / Collection

Ferment
& Fire

Collective Heat
Rank: 05 / hot
28.00
One-Time Purchase2x Hot Sauces
Delivery to
4.95Free over €70

Two fermented sauces. Tangy depth. Serious heat.

A hot sauce set built around fermentation, where time transforms chillies into something deeper, tangier and far more complex.

Fermented Jalapeño delivers bright acidity and layered chilli flavour with controlled, everyday heat. Six weeks of fermentation create a clean, vibrant sauce that works across almost any dish.

Ghost Core takes fermentation in the opposite direction. Fermented ghost peppers and habaneros meet caramelised onions and aged sherry vinegar, creating a slow-building heat that climbs well past 150,000 SHU.

This isn’t supermarket heat. This is craft fermentation at full intensity.

Sauce breakdown

Fermented Jalapeño – Roots Radicals Six weeks of fermentation create bright acidity and layered chilli flavour. Tangy, vibrant and balanced with mild heat.

Ghost Core – Chiliwerk Fermented ghost peppers and habaneros with caramelised onions and aged sherry vinegar. Deep flavour with slow-building, serious heat.

Best with

BBQ • Tacos • Burgers • Wings

Every Republic of Heat set is curated from independent European hot sauce makers producing small-batch sauces with real ingredients and proper chilli flavour.

Out of Stock

European Independent

We source exclusively from independent European manufacturers. No generic mass-market filler; only small-batch artifacts verified for regional quality and artisan technique.

Curated Discovery

Our ministry has rigorously tested over 1,000 independent sauces to bring you this definitive selection. Every set is a balanced hierarchy of heat and flavor.

The Gift Ritual

Delivered in our signature heavy-stock box, designed to look perfect as a gift, a centerpiece for your table, or a personal reward.

What's in the Box / 02 Artifacts Found

Registry: starter_set
Ghost. Core by Chiliwerk

Ghost. Core

Chiliwerk · hot

Ghost Core – Ultra Hot Reserve by Chiliwerk Ghost Core is our hot reserve sauce for everyone who loves real heat with real flavour. Crafted in Berlin in small batches, this sauce brings the intense fire of fermented Ghost Peppers and Habaneros — but without becoming overwhelmingly hot. Instead, it delivers a complex, layered burn supported by deep roasted and caramelised notes. The base of Ghost Core is built from long-fermented chili peppers, giving the sauce natural acidity, roundness, and umami. To balance the heat, we caramelise onions low and slow until they transform into a sweet, savoury backbone. We then roast red pointed peppers until they blister and soften, adding smoke, sweetness, and depth. A splash of 20-year aged Sherry vinegar finishes the sauce with bright acidity and a touch of elegance. The result is a bold, aromatic flavor bomb: smoky, fruity, slightly sweet, and beautifully balanced — followed by the unmistakable, building heat of Ghost Pepper. It’s intense, yes, but not brutal. The goal is flavour first, heat second, always. Ghost Core works perfectly on grilled meats, roasted vegetables, burgers, tacos, fried chicken, rice bowls, and anything that benefits from a deep chili kick. A few drops go a long way — but once the flavour hits, you’ll want more. Fermented. Roasted. Caramelised. Aged. Ghost Core is a showcase of everything we love about chili sauces: craftsmanship, patience, and the pursuit of exceptional flavour.

Fermented Jalapeño by Roots Radicals

Fermented Jalapeño

Roots Radicals · Mild

Our Fermented Jalapeño Hot Sauce is made from jalapeños slowly fermented for 6 weeks, developing a tangy, intensified flavor that perfectly elevates Mexican dishes, fries, pizza, pasta, eggs, soups, and more. A true Roots Radicals classic. As a zero-waste brand committed to the circular economy, Roots Radicals upcycles the jalapeño pulp to ferment green tomatoes for another signature product, while the garlic peels are transformed into our flavorful Baked Garlic Peel Salt.

Frequently Asked Questions

No. This is a one-time purchase. We believe great products don't need auto-renewal to keep customers.

We work with spice importers to include a seasonal extra. This could be a smoked salt blend or a rub specifically for these sauces.

Medium is the safest choice. It offers the typical kick but remains extremely versatile for daily meals and shared tastings.

We ship from our German warehouse. Delivery usually takes 2 to 4 business days.