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The beer of today-brewed from malted grain and hops, manufactured by large and often multinational corporations, frequently associated with young adults, sports, and drunkenness-is largely the result of scientific and industrial developments of the nineteenth century. Modern beer, however, has little in common with the drink that carried that name through the Middle Ages and Renaissance. Looking at a time when beer was often a nutritional necessity, was sometimes used as medicine, could be flavored with everything from the bark of fir trees to thyme and fresh eggs, and was consumed by men, women, and children alike,Beer in the Middle Agesand the Renaissance presents an extraordinarily detailed history of the business, art, and governance of brewing. During the medieval and early modern periods beer was as much a daily necessity as a source of inebriation and amusement. It was the beverage of choice of urban populations that lacked access to secure sources of potable water; a commodity of economic as well as social importance; a safe drink for daily consumption that was less expensive than wine; and a major source of tax revenue for the state. InBeer in the Middle Ages and the Renaissance, Richard W. Unger has written an encompassing study of beer as both a product and an economic force in Europe. Drawing from archives in the Low Countries and England to assemble an impressively complete history, Unger describes the transformation of the industry from small-scale production that was a basic part of housewifery to a highly regulated commercial enterprise dominated by the wealthy and overseen by government authorities. Looking at the intersecting technological, economic, cultural, and political changes that influenced the transformation of brewing over centuries, he traces how improvements in technology and in the distribution of information combined to standardize quality, showing how the process of urbanization created the concentrated markets essential for commercial production. Weaving together the stories of prosperous businessmen, skilled brewmasters, and small producers, this impressively researched overview of the social and cultural practices that surrounded the beer industry is rich in implication for the history of the period as a whole.

Low-alcohol beer (LAB) is a growing part of the brewing industry in terms of market volumes and consumer interest. Universities and research centres are making efforts to improve organoleptic profile and flavour stability of the product. One of the main limitations of such products is the stability. These beers must be severely filtered and pasteurized, causing a significant loss of quality in terms of flavour. Herein, flavour stability of an unpasteurized and unfiltered LAB was checked during 120 days of cold storage (4 ± 1 °C). The results showed that the beer remained stable for 120 days for many observed parameters. The alcohol content increased from 0.5 to 0.7% v/v. The beer without oxygen was more stable than that filled with oxygen in the headspace. The results confirmed the possibility to produce an unpasteurized craft LAB by Saccharomycodes ludwigii by the cold chain.

In a reversal, FIFA World Cup organizers announced on Nov. 18 that beer would not be sold around the stadiums in Doha, Qatar. The Post's Steven Goff explains what the sudden change means for fans.

Among the most important factors influencing beer quality is the presence of well-adjusted amounts of higher alcohols and esters. Thus, a heavy body of literature focuses on these substances and on the parameters influencing their production by the brewing yeast. Additionally, the complex metabolic pathways involved in their synthesis require special attention. More than a century of data, mainly in genetic and proteomic fields, has built up enough information to describe in detail each step in the pathway for the synthesis of higher alcohols and their esters, but there is still place for more. Higher alcohols are formed either by anabolism or catabolism (Ehrlich pathway) of amino acids. Esters are formed by enzymatic condensation of organic acids and alcohols. The current paper reviews the up-to-date knowledge in the pathways involving the synthesis of higher alcohols and esters by brewing yeasts. Fermentation parameters affecting yeast response during biosynthesis of these aromatic substances are also fully reviewed.

Craft beers are usually unpasteurised and unfiltered, causing a different ageing behaviour compared to pasteurised and filtered beers. In this work, the influence of microfiltration, storage temperature, and fresh yeast addition for refermentation on the flavour stability of a top-fermented beer was studied. The determination of the main quality parameters (e.g. extract, haze, foam, pH) and volatile compounds was performed. Also, a trained panel evaluated the sensory profile of the beers. A statistical data (analysis of variance and PCA) processing approach was used to better understand how different treatments interact with the stability of an unpasteurised beer. The main quality parameters were not influenced by the different storage conditions. Microfiltration at 0.45 µm led to decreased head retention and flavour stability in all beers. In fact, oxidation and stale notes were detected only in the microfiltered beers. About volatile compounds, the aldehydes content decreased during storage for all the samples. Furthermore, there were significant differences between cold-stored and room-stored beer after 6 months in terms of aroma and flavour, especially for the hop character. This study highlighted the interesting flavour stability of unpasteurised beer, where yeast acts as a natural stabiliser during refermentation and storage. The results confirmed that cold storage (4 ± 1 °C) is the best option for beer flavour stability.

Lemongrass (Cymbopogon citratus) is a valuable source of vitamins, macro- and microelements, and essential oils. The purpose of this study was to compare the physicochemical properties, sensory properties, antioxidant activity, and microbiological stability of wheat beers enriched with varying additions of crushed lemongrass. Sensory evaluation showed that wheat beers enriched with 2.5% m/v lemongrass were characterised by balanced taste and aroma (overall impression). Physicochemical analysis of the wheat beers showed that increasing the concentration of lemongrass in the finished product negatively affected the ethanol content. Alcohol content in wheat beer enriched with 1% m/v lemongrass was on average 14.74% higher than wheat beer enriched with 2.5% m/v lemongrass and on average 17.93% higher than wheat beer enriched with 5% m/v addition of lemongrass. The concentration of lemongrass in the finished product also increased the acidity of the beers and affected the colour of the wheat beers compared to the control beer. The total polyphenol content and antioxidant activity of lemongrass-enriched wheat beers varied. Of the lemongrass-enriched beers analysed, the beer product with 5% m/v lemongrass was the most microbiologically stable. According to the study, crushed lemongrass-enriched wheat beer may represent a new trend in the brewing industry, but the brewing process still needs to be improved.

Fruit of Saskatoon (Amelanchier alnifolia Nutt.) are a good source of bioactive compounds, such as polyphenols, including anthocyanins, as well as vitamins, macro- and microelements and fibre. By treating Saskatoon fruits with gaseous ozone, and adding the material as an enhancer to barley beers, it is possible to impact the contents of bioactive compounds in the produced fruit beers. Sensory tests showed that beers made from barley with addition of Saskatoon fruit of the ‘Smoky’ cultivar were characterised by the most balanced taste and aroma. Physicochemical analyses of fruit beers, produced with Saskatoon fruit pulp added on the seventh day of fermentation, showed that the beers enhanced with ozone-treated and untreated ‘Smoky’ Saskatoon fruits had the highest contents of alcohol, 5.51% v/v and 5.66% v/v, respectively, as well as total polyphenol contents of 395 mg GAE/L and 401 mg GAE/L, respectively, and higher antioxidant activity (assessed using DPPH•, FRAP and ABTS+• assays). It was demonstrated that the ozonation process led to a decrease in the contents of neochlorogenic acid, on average by 91.00%, and of caffeic acid by 20.62%, relative to the beers enhanced with ‘Smoky’ Saskatoon fruits not subjected to ozone treatment. The present study shows that Saskatoon fruits can be used in the production of beer, and the Canadian cultivar ‘Smoky’ is recommended for this purpose.